Wall form tie assembly



June 17, 1958 w. H. KENNEY ET AL 2,838,822

WALL FORM TIE ASSEMBLY 2 Sheets-Sheet 1 Filed May 25, 1956 INVENTORSWilliam H. Kenney Ferdinand F. Newburg W/ FIG.3.

ATTORNEY w. H. KENNEY ET AL 2,838,822

WALL FORM TIE ASSEMBLY June 17, 1958 2 Sheets-Sheet 2 Filed May 25, 1956aw W Wm M rem M m n W A /mm /x WM m a 9 W F.

United States Patent WALL FORM TIE ASSEMBLY William H. Kenney, WestEnglewood, N. J and Ferdinand F. Newburg, Baltimore, Md..

Application May 25, 1956, Serial No. 587,332

2 Claims. (Cl. 25-131) This invention relates to ties such as are usedin connection with the pouring of concrete between forms andspecifically to ties which are reusable during a Series of pouringoperations.

Where concrete is to be poured between form members it is presently thecustom to apply tie. means insertable between the forms, which ties notonly serve to reinforce the poured concrete but also to space and holdthe form members during the pouring operation. Presently known tiesconsist of unitary steel rods having. fastening. means at each endthereof for the purpose of securing them to the form structure. Suchties extend through the form structures and are secured thereto by meansof keys, wedges or the like. After the wall. has beenpoured the formsare stripped from the concrete and the ties thereafter broken back so asto leave the remainder of the tie embedded in the wall. The hole left bythe break-back is then filled with concrete to hide the break-backopening. In the use of presently known tie structures a substantialamount of metal isbroken off each end of the tie and thereafter thrownaway or sold as scrap.

Accordingly it is an object of the present invention to provide a wallform tie assembly which will eliminate much of the waste of metal found.in presently known structures.

Another object of the present invention is to provide an easily appliedtie assembly.

A further object of the present invention is to, provide a wall form tieassembly which will enable. the user thereof to produce a finished wallof high quality.

An. object of the present invention is to provide a tie end structurewhich may be used over and over again with considerable economy to thebuilder.

A. feature of the present invention is its novel unitary tie endconstruction.

Another feature of the present invention is its use of a simplified tierod.

A further feature of the present invention. is its tie and tie endinterlocking structure.

The invention consists of the construction, combination and arrangementof parts, as herein illustrated, described and claimed.

In the accompanying, drawings, forming a part hereof are illustratedthree forms of embodiment of they invention, inwhich drawings similarreference. characters. designate corresponding parts and in which:

Figure 1 is a view in side elevation ofa complete embodiment of one formof wall tie in accordance with the.

present invention, showing. a fragment of. the poured wall. I t

Figure 2 is a vertical section, somewhat enlarged, of the break-backcone portion of the tie shown in Figure 1.

Figure 3 is a fragmentary view similar to Figure 2 showing the tie afterit has been broken.

Figure 4 is' a sectional view taken on line 44 in Figure 2, looking inthe direction of the arrows.

Figure 5 is a sectional view taken on line 5-5 in Figure 2, looking inthe direction of the arrows.

Figure 6 is a view in side elevation of the cone H1311]: ber showing alocking washer assembly.

Figure 7 is a top plan'view of a second embodiment of the presentinvention. showing a fragment. of the poured wall.

Figure 8 is a fragmentary view of a vertical section of the tie shown inFigure 7 somewhat enlarged showing the manner in which the tie isassembled.

Figure 9 is a view taken on line 9--9 in Figure 8, looking in thedirection of the arrows.

Figure 10 is a view in front elevation ofv the tie end member shown inFigure 8..

Figure 11 is a view taken on line 11-11 in Figure 8, looking in thedirection of the arrows.

Figure 12 is a vertical section of a third embodiment of the presentinvention.

Figure 13 is a sectional view of th embodiment shown in Figure 12, takenon line 13-13.

Referring to the drawings and specifically to Figure 1, 15 indicates arod shaped, tie having weakening notches 16 and-a flattened portion 17spaced from each endthereof. The tie 15 may also be provided with acentral flat portion 18 to prevent twisting thereof'after the concretehas been poured around the said tie. A tie end structure generallyindicated at 19. is secured to. the end of the rod 15. The tieendstructure 19 comprises a cone member 20 and an anchoring bar 21. Theanchoring bar 21 is provided with a slot 22 spaced from the end thereofand a hole 23. between the slot 22 and the end 24 of the anchoring bar21. The cone shaped member 20 is of larger diameterthan that of theanchoring barv 21 and providesa shoulder 24 whichbears against the panelface 25 of the Wall form. The anchoring bar 21 is thrust through asuitable opening 26 in the wall form panel face 25.

Referring to Figures 2, 3, 4 and 5, it will be seen that the cone member20 has a somewhat. key-hole shaped opening 27 in the front thereof. Thekeyhole opening 27 communicates with an interior tie retaining chamber28 formed within the cone. member 20. The chamber 28 is of largerdiameter than the keyhole 27 andv provides a shoulder 29 which preventsthe tie rod 15 fromslipping out of the cone member 20. The flattenedportion 17 of the tie rod 15 slips within the vertical slot 30 of thekey-hole opening 27. The outer end of the rod 15, due to the flattenedportion 17, becomes abutton 31. The button 31 has a bearing. surface 33which seats againstthe shoulder. 29 of the chamber 28.

In order to secure the tie end 19 to the tie rod 15-, the end of the tierod is thrust through the key-hole opening 27, and then forceddownwardly until it reaches the position shown in Figures 1 and 2. Inmoving downwardly the button portion: 31 of the tie rod 15 within theinner retaining chamber 28 will encounter a: nub 43 formed inv the wallof. said chamber. The nub 43-forces the button member 31 of the tie rodlaterally until the said rod has cleared it and assumed the positionshown in Figure 5.

The nub 43. will then act asa lock to keep the tie from moving. upwardlywithin the key-hole slot 27 and becoming detached.

It is within. the purview of. thepresent invention to provide a wedge:member 32 shown in Figure 2 for insertion within the circular portion ofthe key-hole slot 27. The wedge will further prevent the rod 15 from thetie end member 19 the tie rod 15 generally serves as a reinforcingmember but also a spacer or spreader for the form pouring face 25. Afterall of the tie ends have been inserted within the form, in accordancewith the well known practice, they may be locked in place bythrustingkeys, wedges, or other fastening means (not shown) through the slot 22in the tie end members 19. The extending anchoring bars 21 will supportwhale members (not shown) which may be secured to the form by means ofWhaler hooks (not shown), which engage the hole 23 in the tie end member21 in the well known manner.

After the forms are set up the concrete 34 is poured therebetween. Whenthe concrete 34 sets, the forms may be stripped from the'wall leavingthe tie end anchoring bars 21 projecting from the wall. A suitable toolmay be used to grasp the tie end bar 21 and twist it. Spanner holes 35are provided in the rear wall 36 of the cone members 20 for the purposeof receiving the tie end twisting tool. When the tie end 19 is twistedthe tie rod15 will break at the weakening notches 16. The innerflattened portion 18 will prevent the tie rod 15 from twisting withinthe concrete 34. When the tie rod 15 breaks the tie end 19 may be pulledout of the wall leaving a conical opening therein. The conical openingmay. thereafter be filled with cement to provide a smooth wall andprevent rust from the tie 15 from discoloring said wall.

The small portion 19 of the tie 15 which remains within the cone member20 can be shaken out of the 'saidcone as soon as it is pried upwardlyinto the large opening of the'key-hole slot 27. The tie end is thenready for another use.

The rounded nose 37 of the cone member 20 serves as a cam surfaceagainst which the inner shoulder adjacent the flattened portion 17bears, after it is inserted within the key-hole slot 27. The roundedportion 37 also aids in the break-back action of the tie end 19. Thelength of the cone 20 provides a deep break-back of the tie 15 whichprevents the migration of oxide from the tie to the outside of the wall.Referring to Figure 6, there is shown another form of tie lockingstructure. In this embodiment the flattened portion 17 of the tie 15 isprovided with a flat washerlike member 38. The washer 38 is slidablycarried upon the flattened portion 17 of the tie and is of a thicknesswhich will permit it to enter the key-hole slot 27 within the cone 20.'The washer member 38 extends upwardly as indicated at 39 into thekey-hole slot 27 and is received within the slot 27 when in the lockedposition. The tie is thereby secured in place against accidentaldislocation.

Figures 7 through ll illustrate a second embodiment of the presentinvention in which the cone member 20 is provided with a key-hole slot39 extending into the cone from the top thereof. As shown in Figure 10,the slot 39 is out along the vertical axis of the cone member 20 andcommunicates with an inner tie retaining chamber 40 (see Fig. 8). Thetie member 15 in this embodiment of the invention is provided with acollar 41 spaced from the end of said tie. The collar 41 is adjacent theflattened portion 17 of the tie 15. The end of the tie 15 is cylindricalas shown in Figures 7, 8 and-9. The interior of the retaining chamber 40is provided with a top shoulder 42 and an inwardly extending nub 43(best shown in Figure 9). When it is desired to connect the tie endmember to the tie rod 15, the rod end is thrust into the key-hole slot39 as shown in dotted lines in Figure 8. Thereafter, the tie is swungdownwardly in the direction of the arrow in Figure 8 until it assumesthe horizontal position shown in the drawings. The end of the tie rod 15will bear against the shoulder 42 for the purpose of camming the tie roddownwardly into its position of rest-on the bottom of the retainingchamber 40. The collar member 41 prevents the t e rod from being 4pulled out of the cone member 20. A secure fit of the tie rod 15 withinthe retaining chamber 40 is insured by the operation of the nub 43. Acamming action is also performed by the rounded nose 44 of the conemember bearing against the shoulder formed where the rounded tie member15 meets with the flattened portion 17 adjacent the rounded nose 14.This camming action also insures a tight fit of the tie rod 15 with thetie end member. In this embodiment of the invention weakening notches 16are also provided in the tie rod and spanner holes 35 are used in therear wall 36 of the cone member 20 for the hereinabove describedpurpose. The extending anchoring bar 21 in this embodiment of theinvention is the same as that previously described. Once assembled thetie rod 15 and the tie end member shown and described as the secondembodiment of the present invention remain together securely. No otherwedges or locking mechanism are required for this purpose. After theconcrete wall 34 has been poured and the tie rod broken on the weakeningnotches the remaining portion of the tie rod 15 may be slipped out ofthe cone member by forcing it upwardly until it may be pulled out of thekey-hole slot 39. Since the cone members shown and described herein areof the order of 1 /2 inches long, only about 1 /2 inches of metal willbe wasted in any tie rod use. Where tie rods are secured at each end bythe structure shown herein there will be a total loss of approximatelythree inches of metal compared with almost a foot of metal usingpreviously known structures.

In certain pouring operations and for certain other purpose it'maybecome necessary to leave a projecting tie rod after the pouringoperation has been completed. For this purpose, the embodiment shown inFigures 12 and 13 has been devised. In Figure 12 the tie lockingmechanism consists of a rectangular block 46 having a key-hole slot 47in the top thereof similar to that of Figures 7, 8 and 10. The tie rod15 is similar to that shown in'Figures 7 through 9 but projects beyondthe 47. It should be pointed out that it is customary in theprefabricated wall form art to provide slots in the periphery edges ofthe wall forms to receive the ties therethrough. lt'will thus bepossible to strip the form without removing the tie rod. Alternately,the forms 25 may be provided with small circular openings such as areindicated at 48 in Figure 12 to receive the collar members 41therethrough.

When the wall has been poured the projecting end of the tie may be usedfor the purpose of anchoring facing materials or other structuralelements of the wall. It will be apparent that these embodiments shownin Fig ures 12 and 15 may be used to anchor other elements to theprojecting rod members without departing from the spirit of the presentinvention. Thus the projecting tie rods may be used in combination withthe tie ends to support pipes, conduits, ducts and other buildingstructures.

From the foregoing it will be apparent that there has been provided atie assembly which may be used with great economy of metal and time andwhich has application to a wide variety of building operations.

Having thus' fully described the invention, what is claimed as new anddesired to be secured by Letters Patent of the United States is:

1. A tie assembly for use with concrete receiving form structurescomprising, an elongated rod, a flattened portion spaced from each endof said rod, a tie end member engageable with said tie rod, said tie endmember consisting of a substantially cone shaped tie rod end receivingmember having a tie end retaining chamber therein, a tie end engagingnub extending inwardly of the chamber, a tie camming shoulder formed insaid retaining chamber and an anchoring bar extending outwardly fromsaid end receiving member, and a keyhole shaped slot in said tiereceiving member for coupling the tie rod to the tie end member.

2. A tie end assembly according to claim 1 in which the cone shaped tiereceiving member is provided with an arcuate bearing face on the smallerend thereof and an end wall on its opposite end, said end wall beingbored to receive a tie end twisting tool.

References Cited in the file of this patent UNITED STATES PATENTS2,052,012 Beghetti Aug. 25, 1936 2,095,714 Pinaud et al Oct. 12, 19372,657,449 Hillberg Nov. 3, 1953 Erbe July 28, 1953

